今天，Winrar官网正式发布了WinRAR 5.01正式版，官网具体介绍如下：

1. RAR 5.0 archives can include an optional quick open information
controlled with -qo[-|+] switch or "Quick open information" options
group in archiving dialog. It allows to open the archive contents
in WinRAR faster.

This version provides better update performance for archives
containing both quick open information and service records,
such as NTFS file security. Also default parameters of quick open
information are optimized to achieve faster open time for such archives.

2. Bugs fixed:

a) "Find" command could fail when searching text string in .7z archives;

b) when opening RAR 5.0 archive with encrypted file names stored
in another such archive, WinRAR could issue an erroneous message
that password is incorrect. It happened only if passwords to inner
and outer archives were different. It did not affect extraction,
all files could be unpacked regardless of this message;

c) option "Use for all archives" in password dialog did not suppress
additional password requests for RAR 5.0 archives with encrypted
file names;

d) WinRAR address bar did not process correctly environment variable
based paths, such as %temp%;

e) storing NTFS file security and alternate data streams did not work
for file pathnames longer than 260 characters;

f) "Test" command could erroneously report damaged data in valid
recovery record if only a part of files in RAR 5.0 archive
was tested. It did not happen if entire archive contents was tested;

g) "Test" command erroneously reported errors when verifying
RAR 4.x Unix symbolic links;

h) WinRAR "View" command did not work for files inside of BZIP2 archives;

i) if "High precision modification time" option in archiving dialog
was turned off, WinRAR did not store the modification time at all
instead of storing a lower precision time;

j) destination paths containing .\ or ..\ component did not work
when extracting non-RAR archives in WinRAR command line mode;

k) WinRAR failed to unpack multivolume CAB archives.

WinRAR 5.01

Google 自动翻译如下，不喜勿看。

1、RAR 5.0压缩文件可以包含一个可选的快开信息
      控制与-QO [ - | + ]开关或“快速打开信息”选项
      组压缩对话框。它允许打开归档内容
      在WinRAR更快。

      该版本提供了更好的归档性能更新
      同时含有快速开放的信息和服务记录，
      如NTFS文件的安全性。快开也默认参数
      信息进行了优化，实现更快的开放时间为这些档案。

2、错误修正：

      一） “查找”中.7 z档案中搜索文本字符串命令时，可能会失败;

      B）当打开RAR 5.0归档存储加密的文件名
         在另一个这样的归档文件， WinRAR的可以发出一个错误的信息
         该密码是不正确的。它发生只有当密码内
         和外部档案是不同的。但这丝毫没有影响提取，
         所有文件可以不管这个消息的解压缩;

      C）选项中的密码对话框中的“使用所有档案”并没有打压
         对RAR 5.0档案加密与其他密码的请求
         文件名;

      四） WinRAR的地址栏没有正确处理环境变量
         基于路径，如％ TEMP％ ;

      e）存储的NTFS文件安全性和备用数据流没有工作
         文件路径名超过260个字符;

      六） “测试”命令可能会错误地报告在有效的数据损坏
         恢复记录，如果文件仅在RAR部分5.0存档
         进行了测试。它没有发生，如果整个归档内容进行了测试;

      G） “测试”命令错误地验证时报告的错误
         RAR 4.x版Unix的符号链接;

      八） WinRAR的“查看”命令没有为BZIP2压缩内部文件的工作;

      i）如“高精度修改时间”在压缩对话框的选项
         被关闭， WinRAR的未保存的修改时间在所有
         而不是存储较低的精确时间;

      包含\或.. \组件不起作用十）目标路径
         在WinRAR命令行模式下提取非RAR压缩文件时;

      K）失败的WinRAR解压缩多卷CAB压缩。

官网下载地址：

WinRAR 5.01 x86 (数字签名：UTC+8，2013.12.01，16:09:29)
http://www.rarlab.com/rar/wrar501.exe

WinRAR 5.01 x64 (数字签名：UTC+8，2013.12.01，16:09:29)
http://www.rarlab.com/rar/winrar-x64-501.exe